Def. pub.
fastener for printed circuit boards sn



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, 849 0.G. 1221. Identification is by serial number of the application and the heading indicates the number of pages of specification, including claims, and of sheets of drawing contained in the application as originally filed. The file of this application is available to the public for inspection; reproduction may be purchased for 80 cents per sheet.

Applications published under the Defensive Publication Program have not been examined as to the merits of alleged invention. The Patent Ofifilce makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED APRIL 1., 196$) 781,089 FASTENER FOR PRINTED CIRCUIT BOARDS Philip Mendola, 8643 Balboa Drive, Utica, Mich. 48087 Filed Dec. 4, 1968. Published Apr. 1, 1969 Class 339-17 1 Sheet Drawing. 5 Pages Specification- Resilient electrically conducting fingers formed on the flange of a threaded fastener contact the metal foil of a printed circuit board when the threaded fastener is tightened to hold an external lead on the board. A reverse curve in the ends of the fingers permits tightening and removal without scraping the foil oif the circuit board. Finger ends extend upward beyond the curve to a height at least equal to the diameter of the external lead. The flange surrounds the wrenching surfaces of the fastener to prevent damaging the foil With the tightening tool, and the fingers are stamped from the edge of the flange. Each finger forms an angle of about 30 with the flange and each finger end curves toward the flange for about 0.2 inch, with the curved end also forming an angle of about 30 with the flange.

(g (0W April 1969 P. MENDOLA DEF. PUB.

FASTENER FOR PRINTED CIRCUIT BOARDS Filed Dec. 4. 1968 FIG.1

FIG.2

FIG

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